DR H 02 1001
| H 02 1001 | |
|---|---|
 Factory picture around 1930
|
|
| Number: | 1 |
| Manufacturer: | BMAG |
| Year of construction (s): | 1929/1930 |
| Retirement: | 1945 |
| Axis formula : | 2'C1 'h3v |
| Gauge : | 1435 mm ( standard gauge ) |
| Length over buffers: | 23,750 mm |
| Smallest bef. Radius: | 140 m |
| Empty mass: | 111.5 t |
| Service mass: | 115 t |
| Friction mass: | 60 t |
| Top speed: | 110 km / h |
| Indexed performance : | 2,600 hp |
| Coupling wheel diameter: | 2,000 mm |
| Driving wheel diameter: | 2,000 mm |
| Impeller diameter front: | 850 mm |
| Rear wheel diameter: | 1,250 mm |
| Number of cylinders: | 3 |
| HD cylinder diameter: | 220 mm |
| LP cylinder diameter: | 600 mm |
| Piston stroke: | 660 mm |
| Boiler overpressure: | 120 bar |
| Grate area: | 2.4 m² |
| Tender: | 2'2'T 32 |
| Water supply: | 32 m³ |
The H 02 1001 was a high-pressure steam locomotive that was built in 1929/1930 according to Stephan Löffler's system. After unsatisfactory attempts, the locomotive was returned to the manufacturer BMAG in 1934 by the Deutsche Reichsbahn (DR) and scrapped in 1945.
history
At the TH Berlin-Charlottenburg , Professor Stephan Löffler (1877–1929) developed a 120 atmospheric high pressure boiler. BMAG acquired the rights to its patent for use in steam locomotives. It was hoped that the high-pressure system would result in coal savings of 42%. In Wildau , the high-pressure boiler was installed on the chassis of the 01 011.
The recently completed locomotive was presented to a specialist audience at the world conference in Berlin in 1930. During a test drive through the Grunewald Locomotive Research Office, an overheating tube burst without causing any major damage. The leaky piston rings and stuffing boxes of the high pressure cylinders proved to be problematic. During the test runs, there were frequent malfunctions, so that the locomotive had to be towed repeatedly. The coal savings were only 20 percent compared to the regular locomotive - Löffler had targeted 40 percent with his design.
The DR did not accept the H 02 1001 locomotive. The tests were stopped in 1934 and the locomotive was returned to the manufacturer. It stood on BMAG's Wildau premises until the summer of 1945, and was scrapped in the same year.
Constructive features
The locomotive worked according to the Löffler method with a steam pressure of 120 bar. As with the H 17 206 , the fire box consisted of tubular elements connected in parallel. After being superheated three times up to 500 ° C, the high-pressure steam was fed to the two outer high-pressure cylinders via an intricate system of pipes. By means of heat exchange, low-pressure steam with a pressure of 13 to 14 bar and overheating to 300 ° C was obtained, which after working in the inner low-pressure cylinder was immediately released into the open. Steam circulation pumps took care of the steam circuit. With fuel savings of 20 percent compared to the 01 series , however, the complex system made the machine unsuitable for practical operation.
Web links
- Douglas Self: High Pressure: German High-Pressure Locomotives. In: Unusual Steam Locomotives. February 8, 2004, accessed on October 7, 2018 (English, Section H02 with photo).
Individual evidence
- ^ Karl-Ernst Maedel , Alfred B. Gottwaldt : German steam locomotives. The history of development . Transpress Verlagsgesellschaft mbH, Berlin 1994, ISBN 3-344-70912-7 , p. 258-259 .